The next step in the hunt for life on Mars is getting a better grip on the prevalence (or lack thereof) of organic compounds on the surface and in the atmosphere — and then actually digging down into the crust of the Red Planet, to look for actual signs of life, either in the form of fossils or actual living microorganisms. (extremetech.com)
Whereas Curiosity is capable of analyzing Mars» past habitability, the 2020 Mars rover will look for actual signs of life with an on - board microscope that can pick out fossils and other telltale indicators (biosignatures) that microbial life once existed on Mars. (extremetech.com)
Baby Einstein seems to have learned from the critiques of its Language Nursery — First Signs teaches actual signs connected with corresponding images, rather than providing a random, impressionistic introduction. (mamanista.com)